Paper corner protector

ABSTRACT

A paper corner protector includes a corner reinforcement body ( 1 ) which consists of a cardboard ( 2 ) and a cavity ( 3 ), wherein the cavity ( 3 ) is formed by folding the cardboard ( 2 ) end to end. The present utility model enhances the convenience of cost during its transportation and decreases its storage space. Furthermore, a Kraft board is used as the raw material, which is recoverable and reusable and has water-absorbing capacity, so it meets the requirement of environmental protection. It can be expediently folded to become packaging corner protectors so as to be placed on the corners of a packing container such that it can provide favorable protective actions to the corners of the product in the container, such as buffer action, shockproof action and moisture proof action.

BACKGROUND OF THE PRESENT INVENTION

1. Field of Invention

The present invention relates to a corner protector, and moreparticularly to a paper made corner protector, which is able to beaffixed at each of the interior edges of a packing container to protecthome appliances or electrical products for shipping and handling.

2. Description of Related Arts

While transporting home appliances or electrical products, a pluralityof corner protectors are commonly provided at each of the edges orcorners in the packing box, in order to prevent any damage of theproducts due to an external force while transporting. Accordingly, theprotection corners are made by foam material such as Styrofoam or foamtype material, to securely transport the products by its characteristicof absorbing shocks.

Although the above corner protectors, made of Styrofoam or plastic foammaterials, have good buffer and shock absorbing ability, the rawmaterial, i.e. the Styrofoam or plastic foam, is not designed forrecycling. Also, the plastic chemical material of the corner protectoris difficult to be naturally degraded, and will generate a poisoned gasto the environment after the combustion processing, so as to harm thehuman body and the environment.

On the other hand, the corner protectors made by the Styrofoam orplastic foam material for buffering are light in weight. However, afterthe shaping process, the foam material of the corner protectors has afixed shape that normally requires a considerable larger storing space.Therefore, the manufactory needs to prepare a larger storage forstocking. Furthermore, the size of the corner protectors made byStyrofoam or plastic foam materials is bulky. However, the loadingcapacity of the truck for transporting is limited. In other words, itrequires relatively more rides for distributing the corner protectors bythe truck, so as to raise the transportation cost. Also, the Styrofoamor plastic foam materials of the corner protectors do not have a goodwater absorbing ability. Thus, those types of corner protectors cannotprovide the moisture-proof protection for the electrical products.

SUMMARY OF THE PRESENT INVENTION

A main object of the present invention is to provide a paper cornerprotector to overcome the shortages of the existing techs. Using therecyclable Kraft paper cardboard as the raw material, the presentinvention not only forms a corner reinforcement for using at theinterior corners of a packing container by conveniently folding theKraft paper, but also provides a good buffer, shockproof, and moistureproof at each of the interior corners or edges of a product packedwithin the packing container. The paper corner protector also meets thecriteria of environmental protection, and can be convenientlytransported, so as to reduce the transportation cost.

Accordingly, in order to accomplish the above object, the presentinvention adapts the following techniques to practice the presentinvention.

A corner protector, which is made of paper, comprises a cornerreinforcement body formed by folding a cardboard edge-to-edge anddefined an empty cavity between two board walls of the cornerreinforcement body, wherein the space between the two board walls isempty to form said cavity.

The corner reinforcement body has a “L” shaped cross section.

Alternatively, the corner reinforcement body has a “U” shaped crosssection.

Alternatively, the corner reinforcement body has a “U” shaped crosssection, wherein one side longitudinal wall of the “U” shaped cornerreinforcement body is higher than the opposed side longitudinal wall ofthe “U” shaped corner reinforcement body.

The corner reinforcement body further has a reinforcement bouncinggroove indently and longitudinally formed at the outer side of the outerboard wall of the corner reinforcement body for preventing thedeformation of the corner reinforcement body.

The apex of the reinforcement bouncing groove is arranged to biasagainst the inner board wall for applying a bouncing force against theinner board wall to retain a distance between the outer and inner boardwalls.

The corner protector further comprises at least one reinforcing bouncerdisposed within the cavity.

The reinforcing bouncer has a longitudinal tubular structure and is madeof paper to fit between the inner and outer board walls.

For the corner reinforcement body having a L-shaped cross section anddefining an opposite portion and an adjacent portion to form a rightangled configuration, two reinforcing bouncers are applied to theL-shaped corner reinforcement body. The two reinforcing bouncers aredisposed within the cavity of the corner reinforcement body within theopposite portion and the adjacent portion thereof respectively. A forcetransmitting link, which is made of paper, is coupled between the tworeinforcing bouncers within the cavity of the corner reinforcement body.

The present invention has the following advantages: the paper cornerprotector can increase the convenience of transportation whiletransporting and reduce the transportation cost and storage space. Usingthe recyclable Kraft board as the cardboard of the corner protectormeets the criteria of environment protection, and can be convenientlyfolded to form the corner protector for using in the corners or edgeswithin the packing container. It also provides a good buffering andshockproof at each of the corners or edges of a product packed withinthe packing container. The reinforcement bouncing groove is integrallyformed by indently folding the outer board wall of the cornerreinforcement body to reinforce the structure between the outer andinner board walls. The apex of curve-shaped reinforcement bouncinggroove is further inwardly extended to bias against the inner board wallwithin the cavity to enhance the resistance of pressure by means ofbouncing force. The longitudinal tubular shaped reinforcing bouncer hashigh pressure resistance when the reinforcing bouncer is disposed in thecavity.

These and other objectives, features, and advantages of the presentinvention will become apparent from the following detailed description,the accompanying drawings, and the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a paper corner protector according to afirst preferred embodiment of the present invention.

FIG. 2 is a perspective view of a paper corner protector according to asecond preferred embodiment of the present invention.

FIG. 3 is a perspective view of a paper corner protector according to athird preferred embodiment of the present invention.

FIG. 4 is an A-A cross sectional view of the paper corner protectoraccording to the above third preferred embodiment of the presentinvention.

FIG. 5 is a top view of a corner paper protector according to a fourthpreferred embodiment of the present invention.

FIG. 6 is a B-B cross sectional view of the paper corner protectoraccording to the above fourth preferred embodiment of the presentinvention.

FIG. 7 is a perspective view of the paper corner protector according tothe above fourth preferred embodiment of the present invention.

FIG. 8 is a top view of a corner paper protector according to a fifthpreferred embodiment of the present invention.

FIG. 9 is a C-C cross sectional view of the corner paper protectoraccording to the above fifth preferred embodiment of the presentinvention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

The followings with the accompany drawings give further detaildescription of the present invention. Referring to FIG. 1 of thedrawings, a paper corner protector according to a first preferredembodiment of the present invention is illustrated, wherein the cornerprotector, which is made of paper, comprises a corner reinforcement body1 formed by folding a cardboard 2 edge-to-edge and defined an emptycavity 3 between two board walls of the corner reinforcement body 1. Thecorner reinforcement body 1 has a U-shaped cross section.

FIG. 2 illustrates a second embodiment of the present invention, whereinthe to corner protector, which is made of paper, comprises a cornerreinforcement body 1 formed by folding a cardboard 2 edge-to-edge anddefined an empty cavity 3 between two board walls of the cornerreinforcement body 1. The corner reinforcement body 1 has a U-shapedcross section. The corner reinforcement body 1 further has areinforcement bouncing groove 4 indently and longitudinally formed ateach of the outer board walls of the corner reinforcement body 1 forpreventing the deformation of the corner reinforcement body 1.

FIGS. 3 and 4 illustrate a third embodiment of the present invention asan alternative mode of the second embodiment, wherein the cornerprotector has a U-shaped cross section. One side longitudinal wall ofthe U-shaped corner reinforcement body 1 is higher than the opposed sidelongitudinal wall of the U-shaped corner reinforcement body 1. Anindention slot 5 is formed between the two side longitudinal walls ofthe U-shaped corner reinforcement body 1. The reinforcement bouncinggroove 4 is indently and longitudinally formed at each of the outerboard walls of the corner reinforcement body 1 for preventing thedeformation of the corner reinforcement body 1.

FIGS. 5, 6, and 7 illustrate a fourth embodiment of the presentinvention, wherein the corner protector, which is made of paper,comprises a corner reinforcement body 1 formed by folding a cardboard 2edge-to-edge and defined an empty cavity 3 between two board walls ofthe corner reinforcement body 1, such that the space between the twoboard walls is empty to form the cavity 3. The corner reinforcement body1 has a L-shaped cross section. The corner protector further comprisesat least one reinforcing bouncer 6 disposed within the cavity 3. Thereinforcing bouncer 6 has a longitudinal tubular structure and is madeof paper. For the corner reinforcement body 1 having a L-shaped crosssection and defining an opposite portion and an adjacent portion to forma right angled configuration, two reinforcing bouncers 6 are applied tothe L-shaped corner reinforcement body 1. The two reinforcing bouncers 6are disposed within the cavity 3 of the corner reinforcement body 1within the opposite portion and the adjacent portion thereofrespectively. A force transmitting link, which is made of paper, isintegrally coupled between the two reinforcing bouncers 6 within theright angled portion of the cavity of the corner reinforcement body 1for evenly distributing the force from one reinforcing bouncer 6 toanother reinforcing bouncer 6.

FIGS. 8 and 9 illustrate a fifth embodiment of the present invention,wherein the corner protector, which is made of paper, comprises a cornerreinforcement body 1 formed by folding a cardboard 2 edge-to-edge anddefined an empty cavity 3 between two board walls of the cornerreinforcement body 1, such that the space between the two board walls isempty. The corner reinforcement body 1 has a L-shaped cross section. Thereinforcement bouncing groove 4, having a curved shape, is indently andlongitudinally formed at each of the outer board walls of the cornerreinforcement body 1 for preventing the deformation of the cornerreinforcement body 1. The apex of the reinforcement bouncing groove 4 isarranged to bias against the inner board wall for applying a bouncingforce against the inner board wall to retain a distance between theouter and inner board walls.

One skilled in the art will understand that the embodiment of thepresent invention as shown in the drawings and described above isexemplary only and not intended to be limiting.

It will thus be seen that the objects of the present invention have beenfully and effectively accomplished. The embodiments have been shown anddescribed for the purposes of illustrating the functional and structuralprinciples of the present invention and is subject to change withoutdeparture from such principles. Therefore, this invention includes allmodifications encompassed within the spirit and scope of the followingclaims.

1. A paper corner protector, comprising a corner reinforcement bodyformed by folding a cardboard edge-to-edge and defined an empty cavitybetween inner and outer board walls of said corner reinforcement body,wherein the space between said two board walls is empty to form saidcavity.
 2. The paper corner protector, as recited in claim 1, whereinsaid corner reinforcement body has a L-shaped cross section.
 3. Thepaper corner protector, as recited in claim 1, wherein said cornerreinforcement body has a U-shaped cross section.
 4. The paper cornerprotector, as recited in claim 1, wherein said corner reinforcement bodyhas a U-shaped cross section, wherein one side longitudinal wall of saidcorner reinforcement body is higher than an opposed side longitudinalwall of said corner reinforcement body.
 5. The paper corner protector,as in claim 1, 2, 3, or 4, wherein said corner reinforcement bodyfurther has a reinforcement bouncing groove indently and longitudinallyformed at an outer side of said outer board wall for preventing thedeformation of said corner reinforcement body.
 6. The paper cornerprotector, as recited in claim 5, wherein an apex of said reinforcementbouncing groove is biased against said inner board wall for applying abouncing force against said inner board wall to retain a distancebetween said outer and inner board walls.
 7. The paper corner protector,as in claim 2, 3, or 4, further comprising a reinforcing bouncerdisposed within said cavity for reinforcing the structure of said cornerreinforcement body.
 8. The paper corner protector, as recited in claim7, wherein said reinforcing bouncer has a longitudinal tubular structureand is made of paper to fit between the inner and outer board walls. 9.The paper corner protector, as recited in claim 8, wherein two saidreinforcing bouncers are disposed within said cavity of said cornerreinforcement body having a L-shaped cross section, wherein said tworeinforcing bouncers are disposed within said cavity of the cornerreinforcement body within an opposite portion and an adjacent portionthereof respectively, wherein a force transmitting link, which is madeof paper, is coupled between said two reinforcing bouncers within saidcavity of said corner reinforcement body.